baber/WOPTO huggingface dataset:
Patent CA-2009775-A1 (CA)
Title: Audio amplifier with phase modulated pulse width modulation
IPC: H03F3/68
Filed: 1990-02-09
Abstract: An audio amplifier operating at a high frequency many times higher than the highest frequency of the audio signal involves a digital switching system for a phase modulated dc-to-ac converter modified to provide a high fidelity audio amplifier. First and second switching mechanisms (40, 42, 56, 58) are respectively associated with the primary and secondary sides of an isolation transformer (46), the first switching mechanisms being driven by a square wave reference signal of fixed phase and the second switching mechanisms being driven by the square wave reference signal with various diodes for clamping steering or controlling the polarities of the outputs of the second switching mechanisms to provide a phase modulated pulse width modulation and high fidelity amplification particularly adapted for stereo application.
Patent CA-2009794-A1 (CA)
Title: Fire resistant barrier
Inventor: NINTZ ECKHARD
IPC: C03C25/26
Filed: 1990-02-12
Abstract: Abstract of the Disclosure:  A fire resistance barrier comprises a glass fiber fabric coated with not less than 3% by weight of an organic polymer which on pyrolysis (15 min at 600°C) leaves not less than 20% of a carbon-con-taining residue.
Patent CA-2011597-A1 (CA)
Inventor: VAN DER HUIZEN ADRIAAN A
IPC: C08F8/04
Filed: 1990-03-06
Abstract: Thermoplastic elastomeric block copolymers of general formula BDB' (I) or of general formula (B"E)nX, wherein each of B,B',B" comprises a substantially linear, substantially pure polyethylene block, having a melting temperature ~ 110°C, as determined via differential scanning calorimetry; D and E are substantially linear elastomeric polymer blocks being, substantially free from olefinic unsaturation; the molecular weight distribution (Mw/Mn) of B,BD, BDB',B" and B"E is ~ 2; X is a terminal coupling agent-based entity and n is an integer ~ 2.
Patent CA-2012155-A1 (CA)
Inventor: TOTANI TETSUSHI
IPC: A61K31/28
Filed: 1990-03-14
Abstract: Novel platinum complexes of the formula:       (I) wherein R1 and R2 each identically or differently is lower alkyl, or R1 and R2 taken together form -(CH2)m-, and m is an integer from 2 to 5, and antitumor agents comprising the compound (I), which is effective to cisplatin-resistant ascitic murine leukemia, murine leukemia, and solid tumor with slight hemotoxicity and nephrotoxicity.
Patent CA-2012830-A1 (CA)
Title: Fecal occult blood test product with positive and negative controls
Inventor: GUADAGNO PHILIP A
IPC: G01N33/72
Filed: 1990-03-22
Abstract: A test sheet far the determination of the presence of a substance having peroxidase-like activity in a throw-in-the-bowl fecal occult blood test, includes a specimen test area and a positive control area. The test area has deposited thereon a test ink having at least one oxygen donor reagent and a chromogen reagent capable of being oxidized by the oxygen donor in the presence of bland or a substance having peroxidase-like activity, to provide a visually observable change of color. The test ink also includes a water soluble polymer for immobilizing the chromogen and oxygen donor.      The positive control area has deposited thereon the test ink and a substance having the peroxidase-like activity.
Patent CA-2013950-A1 (CA)
IPC: B29C45/74
Filed: 1990-04-05
Abstract: Abstract of the Disclosure An integral heated torpedo is provided for use in injection molding.  The torpedo is formed from a single piece of metal and has an elongate body portion which extends axially from an enlarged end portion and which terminates in tip.  The center of the torpedo body portion contains an axial cavity extending between the torpedo tip and the enlarged end portion. The bore is adapted to receive a heating element which includes a coil of resistance wire and a thermocouple which are surrounded by heat insulative material.  A plurality of melt flow passages extend axially through the enlarged end portion and are disposed generally around the torpedo bore to provide a series of melt flow paths through the enlarged end portion onto the heated exterior surface of the torpedo body.
Patent CA-2015807-A1 (CA)
Title: Liquid transfer articles and method for producing them
Inventor: MORGAN RUSSELL M
IPC: B32B15/08
Filed: 1990-05-01
Abstract: The invention relates to a liquid transfer article, such as a printing roll, having a laser-engraved coated surface comprised of wells adapted to receive a liquid and land areas adapted to be wiped free of any liquid prior to contacting a receiving surface so that only the liquid in the wells are transferred The land areas of the coated surface have a density of greater than 95% theoretical and a roughness of less than 6 micro-inches Ra to insure that any unwanted liquid on the land areas can be wiped clean prior to contacting a receiving surface.  The invention also relates to a method for producing the liquid transfer article.
Patent CA-2017036-A1 (CA)
Title: Apparatus for correctly positioning dispensers to be applied to containers
Inventor: SOGLIANI CLAUDIO
IPC: B65B7/28
Filed: 1990-05-17
Abstract: APPARATUS FOR CORRECTLY POSITIONING DISPENSERS TO BE APPLIED TO CONTAINERS            ABSTRACT OF THE DISCLOSURE      Apparatus for correctly positioning dispensers to be applied to containers, wherein containers and dispensers are fed in succession to an aligning conveyor which comprises a plurality of housings adapted to receive respective dispensers and to support them rotatably about their respective axes. A fixed abutment element is arranged adjacent to the aligning conveyor and is adapted to interfere with a portion of the peripheral surface of the dispensers to cause a rotation of the dispensers about their respective axes during their movement on the aligning conveyor. A photocell is provided for sensing the position assumed by a given portion of each rotating dispenser, and suckers are also provided and controlled by the photocell in order to lock each dispenser within the related housing when a given position is reached.
Patent CA-2017314-A1 (CA)
Title: Yieldable mine post
Inventor: SEEGMILLER BEN L
IPC: E21D15/00
Filed: 1990-05-22
Abstract: ABSTRACT OF THE DISCLOSURE          A yieldable mine post, made of metal and in telescoping form.  The post comprises a pair of mutually telescoping metal post lengths, one being slotted to receive selectively a chosen wedge for forced insertion within the slot to spread apart one of the post lengths, as to its diameter, whereby to increase surface friction between the post lengths and, thereby, the frictional resistance offered to progressive incremental displacements of one post length relative to the other in response to the downward movement of a mine roof supported by such post and further to cause resistance to sliding by forcing the outer post length to deform elastically outward and the inner post length to deform elastically inward, thus generating a "friction bubble" or "friction envelope" which progressively moves down the zone of pipe overlap.
Patent CA-2022173-A1 (CA)
Title: Molded control panel for outboard motor
Inventor: WESTBERG TOM
IPC: B63H20/32
Filed: 1990-07-27
Abstract: ABSTRACT         A molded control panel for an outboard motor includes at least one motor control access opening, and is configured for attachment to the lower motor covers of the motor so that the lower covers may be removed without the removal or disassembly of the motor control systems.
Patent CA-2022390-A1 (CA)
Inventor: AZUMI SHINGO
IPC: C04B35/80
Filed: 1990-07-31
Abstract: A ceramic foam filter, particularly for filtering molton iron, is formed from a composition comprising silicon carbide, alumina, silica derived from colloidal silica sol and alumino-silicate fibres, which has been fixed at such a temperature that the filter has a ceramic matrix in which the alumino-silicate fibres are substantially dissolved. The filter is fired at a minimum temperature of 1150°C and preferably at a temperature within the range from 1200°C to 1300°C. Preferably the filter is formed from an aqueous slurry having a solids content comprising by weight 20 - 50% silicon carbide, 20 - 50% alumina, 1.5 - 5.0% silica derived from colloidal silica sol and 1 - 3% alumino-silicate fibres.
Patent CA-2022895-A1 (CA)
Title: Encapsulated toner compositions
Inventor: ONG BENG S
IPC: G03G9/08
Filed: 1990-08-08
Abstract: An encapsulated toner composition comprised of a core of a resin binder, pigment, dye, or mixtures thereof, and a polymeric shell containing a polyether component.
Patent CA-2023907-A1 (CA)
Title: Blower-type burner for use with heating boiling
Inventor: VIESSMANN HANS
IPC: F23D11/00
Filed: 1990-08-23
Abstract: ABSTRACT           There is disclosed a blower-type burner for use with heating boilers which is effective for reducing NOx pollutants produced by flue gases.  The device is mountable about an opening in a closure or sealing panel of a furnace body and provides for containment of the flue gas path within the burner.  A separate dual impeller system provides for complete separation of the flue gas path from a combustion intake system.
Patent CA-2025093-A1 (CA)
Title: Amino acid derivatives with renin-inhibiting properties, a process for the preparation thereof, agents containing these, and the use thereof
Inventor: HEITSCH HOLGER
IPC: A61K31/445
Filed: 1990-09-11
Abstract: Abstract of the disclosure           HOE 89/F 302K            Amino acid derivatives with renin-inhibiting properties, a process for the preparation thereof, agents containing these, and the use thereof The invention relates to renin-inhibiting amino acid derivatives of the formula   in which R1 is a radical of a substituted nitrogen-con-taining heterocycle such as piperidine, X is CO, CS, SO2 or SO, Y is CH2, O or S, B is the radical of an amino acid of the formula H-B-OH, and R3, R4 and R5 are as defined in the description, a process for the preparation thereof, agents containing these, and the use thereof.
Patent CA-2025126-A1 (CA)
Inventor: ZAFIROGLU DIMITRI P
IPC: D04H3/10
Filed: 1990-09-12
Abstract: A stitchbonded nonwoven fabric which comprises a fibrous layer is reinforced in a first direction with bulkable thread and in a second direction with substantially inextensible thread, the reinforcing directions being at an angle of at least 50 degrees with each other, exhibits superior strength, resistance to splitting and repeated washability.
Patent CA-2025713-A1 (CA)
Inventor: KATO HIDEMASA
IPC: G21C1/04
Filed: 1990-09-19
Abstract: A pressure tube type nuclear reactor arranged in such a manner that pressure tubes each of which accommodates nuclear fuel and through each of which a coolant passes are accommodated in respective calandria tubes disposed in a calandria tank which contains heavy water, wherein the pressure tubes are arranged so as to form an equilateral triangular lattice configuration and/or a member, which replaces heavy water positioned around the calandria tube, is positioned around the calandria tube.  Therefore, the volume ratio of nuclear fuel to heavy water can be made a proper value with which the coolant void reactivity coefficient becomes closer to negative values so that the self-control performance of the pressure tube type nuclear reactor is improved.
Patent CA-2027729-A1 (CA)
Title: Fungicidal combinations of active compounds
Inventor: DUTZMANN STEFAN
IPC: A01N43/653
Filed: 1990-10-16
Abstract: ABSTRACT OF THE DISCLOSURE           A fungicidal composition comprising a fungicidally effective amount of A)   1-(4-chlorophenyl)-4,4-dimethyl-3-(1,2,4-triazol-1-yl-methyl)-pentan 3-ol of the formula                (I) (I), and B)   at least one member selected from the group consisting of 3-cyano-4-(2-fluoro-3-chloro-phenyl)-pyrrole of the formula                      (II), 3-cyano-4-(2,4-difluoro-3-chlorophenyl)-Le A 27 254 pyrrole  of the formula (III),   and    3-cyano-4-(2,3-dichloro-phenyl)-1-(N-methyl-N-furfuryl-aminomethyl)-pyrrole  of the formula (IV).                 Le A 27 254
Patent CA-2030805-A1 (CA)
Inventor: HINTERREITER IGNAZ
IPC: B65D83/04
Filed: 1990-04-12
Abstract: A tablet dispenser comprises a tubular protective housing (1), which in a guide shaft (10) is provided with longitudinal tracks (31, 32) for tablets (5), which can be inserted in the form of a columnlike stack, and with a pressure-loaded ram (9) for one end of the stack of tablets, which ram (9) feeds the tablets (5) along the longitudinal tracks (31, 32) to an ejector (3), which engages the stack adjacent to its other end end by which the tablets (5), which are guided between lateral guides (30) adjacent to the ejector, can individually be displaced transversely to the longitudinal direction of the stack. In order to simplify the assembling and to increase the reliability in function and/or operation the soring (6) biasing the ram (9) is accommodated in a soring shaft (11), which is disposed beside the shaft (10) for guiding and accommodating the tablets (5), and the soring biases a guiding member (7), which is guided in the soring shaft and which carries the ram (9) on an arm (8), which extends out through a longitudinal slot (13) through which the two shafts communicate with each other. For the stack of tablets, a magazine (4) is provided, which can replaceably be inserted into the tablet-guiding shaft (10) of tho housing and has passage openings (29) for the ram (9), a slot (27) for guiding the ram-carrying arm (8) end openings for the ejection of the tablets.
Patent CA-2031126-A1 (CA)
Title: Denture stabilizer
Inventor: KEEGAN JAMES J
IPC: A61K6/00
Filed: 1990-11-29
Abstract: P7232SOl/l                                 PD-3901-03-CAG            ABSTRACT OF THE DISCLOSURE      A  denture  adhesive  base  composition  comprises  a substantially anhydrous mixture of methyl vinyl ethermaleic acid copolymer,  polyvinyl pyrrolidone and ethylene oxide polymer.  A denture adhesive composition including this base composition  is  also  provided,  the  denture  adhesive composition optionally including hydroxypropylcellulose.  A method for formulating the novel denture adhesive base compositions and denture adhesive compositions of the invention is also disclosed.
Patent CA-2031378-A1 (CA)
Inventor: OZEKI HIDEKICHI
IPC: B22D11/10
Filed: 1990-12-03
Abstract: A molten steel pouring nozzle having, along the axis thereof, a bore through which molten steel flows.          At least part of an inner portion of the molten steel pouring nozzle, which inner portion forms the bore, is formed of a refractory consisting essentially of:     zirconia clinker comprising calcium zirconate : from 40 to 89 wt.%, where, a content of calcium oxide in the zirconia clinker being within a range of from 8 to 35 weight parts relative to 100 weight parts of the zirconia clinker; graphite      : from 10 to 35 wt.%; and calcium silicate   : from 1 to 25 wt.%, where, a content of calcium oxide in the calcium silicate being within a range of from 40 to 54 weight parts relative to 100 weight parts of the calcium silicate.
Patent CA-2031516-A1 (CA)
Title: Composition for a solder mask, product thereof and process for using same
Inventor: SALENSKY GEORGE A
IPC: C08L71/02
Filed: 1990-04-17
Abstract: This invention relates to a solder mask composition for thermoplastic substrates. The solder mask has critical components which include a polyhydroxyether and melamine formaldehyde. Other components include a solvent, filler and flow control agent. Optional ingredients include a colorant, epoxy resin and acid to promote the reaction of the composition. A surfactant can also be included.  The solder mask provides the necessary flexibility and adhesion required for thermoplastic circuit boards. The mask can be applied directly to a circuit board or to a transfer medium for subsequent covering of a substrate. It relates to an article which can be a circuit board. It also relates to a process for making such composites which includes processing the solder mask.
Patent CA-2033924-A1 (CA)
Title: Method of and system for pressing sheet glass
Inventor: YOSHIZAWA HIDEO
IPC: C03B35/16
Filed: 1991-01-10
Abstract: A glass sheet is heated nearly to its softening point while being passed through a heating furnace. The heated glass sheet is then clamped at its peripheral edge between first and second molds. Thereafter, a third mold is pressed against a central region of the glass sheet with the peripheral edge thereof clamped, thereby to project the central region from one side to the other side thereof. The glass sheet is thus pressed to a desired highly curved shape with no wrinkles or cracks developed therein. The glass sheet is clamped and pressed by a pressing apparatus which includes a fixed concave ring mold as the first mold, and a movable convex mold comprising a peripheral mold assembly as the second mold and a central mold member as the third mold.      The glass sheet thus curved is typically used as a front or rear window glass sheet for automobiles.
Patent CA-2034458-A1 (CA)
Title: Molded case circuit breaker contact and contact arm arrangement
Inventor: BELLINO JOSEPH P
IPC: H01H1/58
Filed: 1991-01-17
Abstract: A molded case circuit breaker movable contact arm electrically connects with the circuit breaker load terminal requiring only a small diameter auxiliary electrical conducting braid by pivotally arranging the contact arm within its support. The contact arm is nickel-plated prior to attachment of the contact to insure high current circuit interruption without damage to the contact or the contact arm.
Patent CA-2035548-A1 (CA)
Inventor: MAZZORATO GIUSEPPE
IPC: A47G25/14
Filed: 1991-02-01
Abstract: SUPPORT FOR PRICE MARKER SIGNS AND THE LIKE, PARTICULARLY FOR          DISPLAYS OF ITEMS OF CLOTHING               ABSTRACT OF THE DISCLOSURE     The support for price marker signs comprises a central body provided with an engagement element which is suitable for being hung from the horizontal rail of the displays generally used in shops. A counterweight is fixed below  the central body and a sign, having a support for a writable surface,  is connected above the central body. The support autonomously assumes and stably maintains a correct vertical position even after repeated movements of the display and continuous manipulations of the items on display.
Patent CA-2036251-A1 (CA)
Title: Apparatus for disintegrating and disinfecting waste
Inventor: MEHLE ARTHUR
IPC: B02C13/286
Filed: 1991-02-13
Abstract: ABSTRACT        An apparatus for disintegrating and disinfecting waste includes a feeder elevator, two opposingly ositioned crusher conveyors, a pair of counter-rotating parallel hammermill rotors, a disintegrated material discharge conveyor, disinfectant nozzles and a mixing tumbler drum.  Waste material is fed by the elevator into the crusher conveyors where it is crushed and axially fed into the hammermills in a vertical direction.  Once fully disintegrated, the material is discharged from the hammermills, disinfected by spraying disinfectant from the nozzles onto the material while transported on the discharge conveyor.  The material is subsequently mixed with additional disinfectant in the tumbler drum.  Spit-back of material from the hammermills is substantially prevented, a blower system for creating a positive flow through the apparatus is obviated, and the complete apparatus may be decontaminated.  Thus, manufacturing and maintenance costs are reduced.
Patent CA-2039453-A1 (CA)
IPC: F25D3/00
Filed: 1991-03-28
Abstract: A chill-retention food service tray, capable of keeping its contents chilled for an extended time (e.g., several hours) in a warm environment, comprises a bottom tray member including a bottom panel having an upwardly projecting peripheral rim wall and a plurality of upwardly projecting stiffening ribs onto which a top tray member fits; the top tray member includes a support panel at the upper level of the reinforcing ribs and a peripheral rim wall engaging and adhesively secured to the bottom rim wall, as well as a closed configuration hollow wall defining a cup for a dip, sauce, or the like.  The two tray members conjointly define a chamber filled with a viscous chilling gel; the gel has a high heat of fusion.  A plurality of removable divider members may divide the top panel support surface, around the cup, into a series of storage compartments.
Patent CA-2040351-A1 (CA)
Inventor: AYER GEORGE E
IPC: H01R4/24
Filed: 1991-04-12
Abstract: of the Invention  A terminal assembly includes a block and a plurality of clip-type terminals mounted to the block.  The block is a dielectric body having a central section and fanning strip sections at opposed margins.  The terminals are loosely received through the holes and have wire receiving portions on one side of the central section and lying intermediate the fanning-strip sections and base portions on the opposite side of the central section.  A retaining plate engages with the body for enclosing the base portions of the terminals within the dielectric body.  The retaining plate further has a plurality of elongate, parallel and spaced-apart raised rib portions arranged for engaging the base portions of the terminals, such that wire receiving portions thereof are held in position projecting through the holes.  The terminals comprise clip terminals having a flat body that includes two opposed resilient arms cantilevered from the base of the terminal.  The resilient arms are separated by a notch at an upper end for receiving a wire conductor, by a conductor-receiving slot that extends downwardly from a lower end of the notch, and by an enlarged aperture extending downwardly from a lower end of the slot to the base.  Oppositely outwardly facing edges of the resilient arms extend downwardly at a divergent angle to the base and inwardly facing edges of the resilient arms defining the aperture diverge at a substantially identical angle, such that the portions of the resilient arm flanking the aperture are of substantially constant width.
Patent CA-2040793-A1 (CA)
Inventor: WILLMITZER LOTHAR
IPC: A23L19/12
Filed: 1991-04-18
Abstract: Plasmids are described, the DNA sequences of which when inserted into the genome of a plant modify the carbohydrate or protein concentration and the carbohydrate or protein composition, as well as plant cells and plants that contain those plasmids.        DNA located in plasmids described reduces in the plant the ADP-glucose-pyrophosphorylase activity and thereby the starch concentration and at the same time increases the mono- and oligosaccharide concentration. Other DNA in plasmids reduces or increases the protein concentration.  Plants that contain those plasmids are suitable inter alia for the extraction of sugar or as protein-enriched food or fodder.
Patent CA-2042845-A1 (CA)
Inventor: HOSHINO KOJI
IPC: B22F9/24
Filed: 1991-05-17
Abstract: There is disclosed a precious metal article which is formed of a solid-phase sintered product of a precious metal powder.      For manufacturing the precious metal article, a moldable mixture which contains a precious metal powder and a binder removable by sintering is shaped into a prescribed molded object, and the molded object is then subjected to sintering. The moldable mixture is produced by preparing a precious metal powder, preparing a jellylike cellulose binder by blending a cellulose with water and leaving for a prescribed period of time, and blending the precious metal powder and the jellylike cellulose binder together. The most preferable moldable mixture contains 50 to 90 % weight of precious metal powder, 0.8 to 8 % by weight of water-soluble cellulose binder, 0.08 to 3 % by weight of a surface-active agent. 0.1 to 3 % by weight of oil, balance water and unavoidable impurities. The precious metal powder preferably contains gold powder and powder of an alloy containing silver or copper, and the gold powder is obtained by submerged-reduction method.